- 1、本文档共5页,可阅读全部内容。
- 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多
医学英语术语的1
PAGE
PAGE 5
医学英语术语
Chapter Two Digestive System
I.Introduction
The digestive system, also called the alimentary or gastrointestinal tract, begins with the mouth, where food enters the body, and ends with the anus, where solid waste material leaves the body. The primary functions of the organs of the digestive system are threefold.
First, complex food material that is taken into the mouth must be digested, or broken down, mechanically and chemically, as it travels through the gastrointestinal tract (passageway). Digestive enzymes are substances that speed up chemical reactions and help in the breakdown (digestion) of complex nutrients. Complex proteins are digested to simpler amino acids; complicated sugars are reduced to simple sugars, such as glucose; and large fat molecules are broken down to fatty acids and triglycerides.
Second, the digested food must be absorbed into the bloodstream by passing through the walls of the small intestine. In this way, valuable nutrients, such as sugar and amino acids, can travel to all the ceils of the body. Within the cells, nutrients are catabolized (burned) in the presence of oxygen to release energy stored within the food. Amino acid nutrients are used to anabolize (build) large protein molecules that are needed for growth and development of cells. Fatty acids and triglycerides are also absorbed through the walls of the small intestine but enter lymphatic vessels rather than blood vessels. These digested fats eventually enter the blood- stream as lymph vessels join with blood vessels in the upper chest region.
The third function of the digestive system is to eliminate the solid waste materials that cannot be absorbed into the bloodstream. These solid wastes, called feces, are concentrated in the large intestine and finally pass out of the body through the anus.
II. Combining forms
汉语意义
英语意义词根例词咽
throat
[ θr?ut ]pharyng (o) -pharyngitis pharyngotympanic
pharyngeal
您可能关注的文档
- 医务精细化管的理规则.doc
- 医学三基(骨康钠).doc
- 医学专业词汇的前缀 后缀 词根.doc
- 医学专家告诉的九大健康秘技.ppt
- 医学专业英语的 专业词汇.doc
- 医学临床眼科的医师“三基”训练与眼科疾病诊疗技术操作规范实务全书.pdf
- 医学临床三基的训练-医技分册-药剂试卷及答案-第四版.doc
- 医务部信息管的理系统.doc
- 医学伦理学案的例.ppt
- 医学主题词表的.doc
- 中国国家标准 GB/T 18233.4-2024信息技术 用户建筑群通用布缆 第4部分:住宅.pdf
- GB/T 18233.4-2024信息技术 用户建筑群通用布缆 第4部分:住宅.pdf
- GB/T 18978.210-2024人-系统交互工效学 第210部分:以人为中心的交互系统设计.pdf
- 《GB/T 18978.210-2024人-系统交互工效学 第210部分:以人为中心的交互系统设计》.pdf
- 中国国家标准 GB/T 18978.210-2024人-系统交互工效学 第210部分:以人为中心的交互系统设计.pdf
- GB/T 16649.2-2024识别卡 集成电路卡 第2部分:带触点的卡 触点的尺寸和位置.pdf
- 《GB/T 16649.2-2024识别卡 集成电路卡 第2部分:带触点的卡 触点的尺寸和位置》.pdf
- 中国国家标准 GB/T 16649.2-2024识别卡 集成电路卡 第2部分:带触点的卡 触点的尺寸和位置.pdf
- GB/T 17889.4-2024梯子 第4部分:铰链梯.pdf
- 《GB/T 17889.4-2024梯子 第4部分:铰链梯》.pdf
文档评论(0)